Cyber Security Analyst Interview Questions UK: 8 Real Questions and What Interviewers Want

Most Cyber Security Analyst interviews in the UK follow a pattern, and knowing it beats guessing. Below are eight questions from our bank of 25, each with a note on what the interviewer is really after.

Eight Cyber Security Analyst interview questions, and what the interviewer is thinking

1. What does a typical day as a Cyber Security Analyst involve?

Why they ask: They want to confirm you understand the monitoring, investigation and improvement cycle.

2. What is the difference between a security event, an alert, an incident and a breach?

Why they ask: Precise terminology underpins consistent triage and reporting.

3. Walk me through how you triage a high-severity alert from a SIEM or EDR.

Why they ask: This tests structured analytical thinking, which is the heart of the role.

4. Which Windows event IDs do you pay attention to when investigating suspicious activity, and what do they tell you?

Why they ask: Log literacy is a day-to-day requirement for analysts.

5. How would you write a query in Splunk SPL or Microsoft KQL to look for repeated failed logins followed by a success?

Why they ask: They want to see practical query skills used in daily investigation.

6. A user's Microsoft 365 account is suspected to be compromised. What would you look at and what actions would you take?

Why they ask: Business email compromise is one of the most common incidents in UK organisations.

7. Several users report the same suspicious email, and your logs show that around 200 mailboxes received it, with some clicks. What do you do?

Why they ask: Phishing at scale is a realistic scenario requiring fast, structured action.

8. Tell me about a time you escalated an incident. How did you decide it needed escalating, and how did you communicate it?

Why they ask: Judgement about escalation is a key analyst skill.

A sample answer to question 1

What does a typical day as a Cyber Security Analyst involve?

My day usually begins with a handover from the previous shift or team, checking open incidents, any new threat advisories and the health of our monitoring tools. I then work through the alert queue, triaging by severity, enriching alerts with context such as user, asset criticality and threat intelligence, and deciding whether each is a false positive, a benign true positive or a real incident that needs escalation. I might investigate a suspicious sign-in in the identity logs, review a phishing report from a user, or check vulnerability scan results for newly published exploited flaws. In quieter periods I tune detection rules, update runbooks, and run proactive hunts. I write clear notes in the case management system so others can follow my work, and I meet with infrastructure or application teams to agree fixes. It is a mix of investigation, communication and steady improvement.

Common mistake to avoid: Describing only exciting incidents; Forgetting documentation and communication

Want the rest?

Full model answers, key points and common mistakes for all 25 questions are on the Cyber Security Analyst interview questions page. The first five are free, no sign-up needed.